CN106949768A - Multi-channel hot exchanges flat tube - Google Patents
Multi-channel hot exchanges flat tube Download PDFInfo
- Publication number
- CN106949768A CN106949768A CN201610008183.0A CN201610008183A CN106949768A CN 106949768 A CN106949768 A CN 106949768A CN 201610008183 A CN201610008183 A CN 201610008183A CN 106949768 A CN106949768 A CN 106949768A
- Authority
- CN
- China
- Prior art keywords
- side wall
- internal rib
- flat tube
- sidewall
- channel hot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of Multi-channel hot of technical field of heat exchange exchanges flat tube, including：The first side wall, second sidewall, the 3rd side wall, the 4th side wall and the internal rib of integrated folding shaping, wherein：The first side wall is parallel with above and below second sidewall, and the 3rd side wall and the 4th side wall axis along along cross section are symmetrical, and internal rib axis along along cross section is divided into symmetrical left internal rib and right internal rib；Described the first side wall, the 3rd side wall, second sidewall and left internal rib, which is sequentially connected, surrounds left side runner；Described the first side wall, the 4th side wall, second sidewall and right internal rib, which is sequentially connected, surrounds right side runner.The present invention uses the collapsible heat exchange flat tube of copper, increases heat exchange area, while overall performance is lifted, and reduces copper material consumption and equipment investment, reduces production cost.
Description
Technical field
The present invention relates to a kind of technology of field of heat exchange, specifically a kind of Multi-channel hot exchanges flat tube.
Background technology
The evaporator of current domestic air-conditioning system and condenser, the fan coil of central air conditioner system, the heat exchange of gas heater
The general fin-tube type heat exchanger using copper pipe aluminum fin structure type in the heat transmission equipments such as device.Copper pipe is pipe in heat exchanger, due to
Pipe has that area of surface-heat transfer is small, and small with fin contacts heat transfer area, the problems such as leeward side has air return limits heat exchanger
The further lifting of heat exchange efficiency, and add air-side flow resistance.
Research shows that the minute yardstick augmentation of heat transfer effect of microchannel can significantly lift the efficiency of heat exchanger, and microchannel aluminium flat conduit is in vapour
Successful Application on car air-conditioning demonstrates this point.But because aluminium fusing point is relatively low, corrosion resistance is poor, it is difficult to adapt to high humility,
The working environment of high-temperature, therefore, it is difficult to be applied on the common equipments such as domestic air conditioning, fan coil and gas heater.If can be real
The micro-channel flat of existing copper pipe, substitutes the round copper pipe of original equipment, it is possible to realize the lifting of heat exchanger performance.It is existing on the market
Copper flat tube is simply directly flattened by pipe and formed, and the effect without microchannel enhanced heat transfer.
Found by the retrieval to prior art, Chinese patent literature CN102353294A, open (bulletin) day 2012.02.15,
A kind of folding-type microchannel porous flat pipe and its forming method are disclosed, the flat tube is integrally formed using a single sheet, and monomer is thin
Plate is promoted in proper order by mechanical bending mechanism multiple spot molding control, roundabout bending first is distinguished at single sheet two ends, then by roundabout folding
Curved part is after vertical bending twice, then folds and be integrally formed in the midline position docking of single sheet through a flip horizontal,
And then form the porous flat pipe with spaced pore.But the invention be limited to aluminium platinum sheet material corrosion-resistant, fusing point it is low,
The defect of poor ductility, it is difficult to which applied to the bad working environments such as hot and humid, and aluminium soldering connection technology can not directly apply to copper material welding.
The content of the invention
The present invention is directed to deficiencies of the prior art, it is proposed that a kind of Multi-channel hot exchanges flat tube, can reduce the resistance of wind side
Power, on the premise of corrosion resistance and bearing capacity is ensured, improves the heat exchange efficiency of the heat transmission equipments such as domestic air conditioning.
The present invention is achieved by the following technical solutions,
The present invention includes：The first side wall, second sidewall, the 3rd side wall, the 4th side wall and the internal rib of integrated folding shaping,
Wherein：The first side wall is parallel with above and below second sidewall, and the 3rd side wall and the 4th side wall axis along along cross section are symmetrical, internal
Rib axis along along cross section is divided into symmetrical left internal rib and right internal rib；
Described the first side wall, the 3rd side wall, second sidewall and left internal rib, which is sequentially connected, surrounds left side runner；
Described the first side wall, the 4th side wall, second sidewall and right internal rib, which is sequentially connected, surrounds right side runner.
Technique effect
Compared with prior art, the present invention substitutes round copper pipe with copper heat exchange flat tube, reduces wind collateral resistance, increases heat exchange
Area, while overall performance is lifted, reduces copper material consumption；And use roll squeezer to fold the work for being integrally formed, being welded and fixed
Skill can not only ensure the uniformity of heat exchange flat tube overall construction intensity relative to conventional extrusion, and can simplify technique,
Equipment investment is reduced, production cost is reduced.
Brief description of the drawings
Fig. 1 is the flat tube sectional view of embodiment 1；
Fig. 2 is partial, detailed view in Fig. 1；
In figure：The first side wall 1, second sidewall 2, the 3rd side wall 3, the 4th side wall 4, internal rib 5, left internal rib 51,
Right internal rib 52, heat exchanger channels 6, composite welding metal level 7, solder 8.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is implemented lower premised on technical solution of the present invention,
Detailed embodiment and specific operating process are given, but protection scope of the present invention is not limited to following embodiments.
Embodiment 1
As shown in figure 1, the present embodiment includes：Integrated folding shaping the first side wall 1, second sidewall 2, the 3rd side wall 3,
4th side wall 4 and internal rib 5, wherein：The first side wall 1 and second sidewall parallel, the 3rd side wall 3 and the 4th side wall 4 about 2
Axis is symmetrical along along cross section, and the axis along along cross section of internal rib 5 is divided into symmetrical left internal rib 51 and right internal rib
52；
Described the first side wall 1, the 3rd side wall 3, second sidewall 2 and left internal rib 51, which is sequentially connected, surrounds left side runner A,
Described left side runner A is divided into several heat exchanger channels 6 by left internal rib 51；
Described the first side wall 1, the 4th side wall 4, second sidewall 2 and right internal rib 52, which is sequentially connected, surrounds right side runner B,
Described right side runner B is divided into several heat exchanger channels 6 by right internal rib 52.
The upper summit C of the internal rib 5, lower summit D replace with the first side wall 1, second sidewall 2 to be welded and fixed, internal rib
5 shape of cross section can be sine wave, cosine wave, triangular wave, square wave or trapezoidal wavy, the present embodiment be preferably it is trapezoidal wavy,
While runner is separated, play a part of support the first side wall 1 and second sidewall 2.
As described in Figure 2, described Multi-channel hot exchanges the upper and lower surface of flat tube and covers composite welding metal level 7, convenient to use
Integral braze-welded mode is fixed.
Described second sidewall 2 folds the intermediate gap formed and realizes seamlessly transitting for surface by filling solder 8.
The 3rd side wall 3, the 4th side wall 4 and the first side wall 1, the junction of second sidewall 2 are preferably curved profile.
Described Multi-channel hot exchanges flat tube wall thickness and internal rib thickness is 0.1~2mm, and pipe width is 8~60mm, and pipe is highly
1~20mm, heat exchanger channels number is 2~30.
Described Multi-channel hot exchanges flat tube and is integrally formed for copper metal thin plate by way of roll squeezer symmetrical fold, can process chi
Very little scope is big, disclosure satisfy that the requirement of small size heat exchanger channels design.The heat exchanger of flat tube is exchanged using copper Multi-channel hot, it is changed
The thermal efficiency can at least lift 30%, and wind collateral resistance at least reduces by 30%.
Claims (5)
1. a kind of Multi-channel hot exchanges flat tube, it is characterised in that including：Integrated folding shaping the first side wall, second sidewall,
3rd side wall, the 4th side wall and internal rib, wherein：The first side wall is parallel with above and below second sidewall, the 3rd side wall and the 4th side wall edge
Axis is symmetrical on cross section, and internal rib axis along along cross section is divided into symmetrical left internal rib and right internal rib；
Described the first side wall, the 3rd side wall, second sidewall and left internal rib, which is sequentially connected, surrounds left side runner；
Described the first side wall, the 4th side wall, second sidewall and right internal rib, which is sequentially connected, surrounds right side runner.
2. Multi-channel hot according to claim 1 exchanges flat tube, it is characterized in that, described internal rib, thereon summit, under
Summit is alternately contacted with the first side wall and second sidewall respectively, and left side runner and right side runner are divided into several heat exchanger channels.
3. Multi-channel hot according to claim 1 or 2 exchanges flat tube, it is characterized in that, described internal rib, its cross section
For sine wave, cosine wave, triangular wave, square wave or trapezoidal wavy.
4. Multi-channel hot according to claim 1 exchanges flat tube, it is characterized in that, described flat tube tube wall upper and lower surface is covered
Lid weld metal layers.
5. the Multi-channel hot according to any of the above-described claim exchanges flat tube, it is characterized in that, described flat tube wall thickness and inside
Rib thickness is 0.1~2mm, and pipe width is 8~60mm, and pipe is highly 1~20mm, and heat exchanger channels number is 2~30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008183.0A CN106949768A (en) | 2016-01-07 | 2016-01-07 | Multi-channel hot exchanges flat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008183.0A CN106949768A (en) | 2016-01-07 | 2016-01-07 | Multi-channel hot exchanges flat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106949768A true CN106949768A (en) | 2017-07-14 |
Family
ID=59465639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008183.0A Pending CN106949768A (en) | 2016-01-07 | 2016-01-07 | Multi-channel hot exchanges flat tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949768A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595248A (en) * | 2018-12-29 | 2019-12-20 | 杭州三花微通道换热器有限公司 | Flat pipe, heat exchange pipe, heat exchanger and manufacturing method of heat exchange pipe |
| WO2022166887A1 (en) * | 2021-02-05 | 2022-08-11 | 杭州三花微通道换热器有限公司 | Heat exchange tube and heat exchanger having same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555486U (en) * | 2009-06-12 | 2010-08-18 | 上海德尔福汽车空调***有限公司 | Micro-channel flat tube with novel technological structure |
| CN202938676U (en) * | 2012-10-31 | 2013-05-15 | 常州腾龙轻合金材料有限公司 | Foldable heat dissipation aluminum pipe for heat exchanger |
-
2016
- 2016-01-07 CN CN201610008183.0A patent/CN106949768A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555486U (en) * | 2009-06-12 | 2010-08-18 | 上海德尔福汽车空调***有限公司 | Micro-channel flat tube with novel technological structure |
| CN202938676U (en) * | 2012-10-31 | 2013-05-15 | 常州腾龙轻合金材料有限公司 | Foldable heat dissipation aluminum pipe for heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595248A (en) * | 2018-12-29 | 2019-12-20 | 杭州三花微通道换热器有限公司 | Flat pipe, heat exchange pipe, heat exchanger and manufacturing method of heat exchange pipe |
| CN110595248B (en) * | 2018-12-29 | 2021-04-13 | 杭州三花微通道换热器有限公司 | Flat pipe, heat exchange pipe, heat exchanger and manufacturing method of heat exchange pipe |
| WO2022166887A1 (en) * | 2021-02-05 | 2022-08-11 | 杭州三花微通道换热器有限公司 | Heat exchange tube and heat exchanger having same |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170714 |
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| WD01 | Invention patent application deemed withdrawn after publication |